Question 597446
SQUARE ROOT OF (Z+5)= 2Z
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Square both sides to get:
(z+5) = 4Z^2
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Rearrange:
4z^2 - z + 5 = 0
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z = [1 +- sqrt(1-4*4*5)]/8
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z = [1 +- sqrt(-79)]/8
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z = [1 +- isqrt(79)]/8
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cheers,
Stan H.